The 12 inch woofer of the Cinema Series is an advanced High-Speed Ultra-Long-Stroke driver which uses a very light cone material and a very strong motor (magnet) structure. We choose fast and light drivers to give both high speed, and maximum dynamic sound. The bass drivers are able to perform the ultra-long strokes with a maximum of linearity and we also developed a special NBR (Nitrile Butadiene Rubber) surround to complement them.

The requirements of the driver means that to achieve the highest SPL, even down to the lowest frequencies, the box needs to be big. This is just pure physics. An optimized volume for the driver gives the perfect air resistance to the driver. This results in the highest SPL at low frequencies, with maximum head room from the amp. Boxes that are too small or too big  lead to over-damped or under-damped subwoofers that have increased distortion. A box with an optimal volume has low distortion and the widest frequency response possible enabling the subwoofer to deliver the lowest and deepest bass with a sound that is still clean yet has a lot of headroom for the amplification.

We required our subwoofer to provide very high sound pressure levels yet remain precise and true to the original content.  We met this challenge by using the specially developed low-mass long throw driver. The 12 inch cone consists of a very strong, long fiber pulp blended material optimizing the diaphragm’s stiffness to weight ratio. Our custom designed drivers have several more advantages to achieve the perfect bass:

• FEA Optimized magnetic field design incorporating a tightly focused “T” pole design
• Advanced level of large signal motor and suspension refinement using a KLIPPEL laser-based test system
• Large aluminum shorting ring to minimize inductance and further lower non-linear distortion
• Ultra-high temp aluminum voice coil with Airflow Maximizer Design
• Special NBR rubber surround with maximum linearity throughout its excursion range
• Spider fabricated from a unique blend of poly-cotton and pure NOMEX

The 1X12 EDGE uses our new SA-1 subwoofer amplifier based on ICEpower® audio technology. ICEpower® modules are used in many very costly designs thanks to its extreme performance (S/N at 117 dB) and huge power output capability. Another astonishing advantage is the high efficiency and thus lower energy consumption while delivering maximum dynamics.

The SA-1 is an even more advanced amplifier than the one which is used in the previous 1X12 subwoofer due to a higher power output and improved impulse response. It also offers additional sound tuning options with a parametric EQ (PEQ) and pre-programmed EQ modes (REF, EQ1, EQ2). This new amplifier features an advanced digital signal processor (DSP) that gives the amplifier extreme control over the driver.

The digital signal processor (DSP) used in the XTZ SA-1 subwoofer amplifier is very powerful, designed from the ground up. The DSP controls the subwoofer’s frequency response in real-time, with total control over the cone movements, and with the available adjustments the sound can be tailored for a mighty bass experience, to say the least.The DSP works with extremely high precision, and high speed. It has a Dual Precision filter with 56 bit resolution and continuously makes 50 million calculations per second (50 MHz).

A parametric equalizer (PEQ) is an adjustable filter and a very powerful tool where the user can target and compensate for issues with room modes and nodes that are unique for every listening area. To use this function in the best possible way, we recommend using measuring equipment like the XTZ Room Analyzer II Pro (sold separately) to really see how the listening area is performing. There you can use the Real Time Analysis (RTA) measuring (at ear height) in a couple of different places within your listening area, to see if a certain frequency range have a repeating pattern e.g. a „dip” or „peak”. Set the PEQ to On on the subwoofer amplifier terminal, then set the gain to either + 9 or – 9 to see what frequency is targeted. Trim the frequency to the correct spot and adjust the gain to balance out a dip or a peak.